在Linux下安装多个MySQL

	1、按照常规安装。 [root@ff_girl mysql5122]# chown -R root . [root@ff_girl mysql5122]# chown -R mysql data [root@ff_girl mysql5122]# chgrp -R mysql . [root@ff_girl mysql5122]# cp support-files/my-small.cnf /etc/my5122.cnf [root@ff_girl mysql5122]# scripts/mysql_install_db --basedir=/usr/local/mysql5122/ --datadir=/usr/local/mysql5122/data/ --user=mysql Installing MySQL system tables... OK Filling help tables... OK To start mysqld at boot time you have to copy support-files/mysql.server to the right place for your system 。。。 首次启动MYSQL [root@ff_girl mysql5122]# bin/mysqld_safe --defaults-file=/etc/my5122.cnf & [1] 13700 [root@ff_girl mysql5122]# 080124 15:01:46 mysqld_safe Logging to '/usr/local/mysql5122/data/localhost.localdomain.err'. 080124 15:01:46 mysqld_safe Starting mysqld daemon with databases from /usr/local/mysql5122/data [root@ff_girl mysql5122]# bin/mysql -uroot -p -S/tmp/mysql5122.sock Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 1 Server version: 5.1.22-rc MySQL Community Server (GPL) Type 'help;' or '\h' for help. Type '\c' to clear the buffer. mysql> show databases; +--------------------+ | Database　　　　　 | +--------------------+ | information_schema | | mysql　　　　　　　| | test　　　　　　　 | +--------------------+ 3 rows in set (0.00 sec) 给MYSQLD_MULTI赋SHUTDOWN权限。 mysql> grant shutdown on *.* to multi_admin@'localhost' identified by '123456'; Query OK, 0 rows affected (0.00 sec) mysql> flush privileges; Query OK, 0 rows affected (0.00 sec) mysql> exit Bye 停掉MYSQL服务。 [root@ff_girl ~]# /usr/local/mysql5122/bin/mysqladmin -uroot -p -S/tmp/mysql5122.sock shutdown Enter password: [root@ff_girl ~]# 拷贝元数据。 [root@ff_girl mysql5122]# cp data data2 [root@ff_girl mysql5122]# mv data data1 [root@ff_girl mysql5122]# chown -R mysql data2 [root@ff_girl mysql5122]# chgrp -R mysql . 示例配置文件 [ root@ff_girl mysql5122]# cat /etc/my5122.cnf [mysqld_multi] mysqld　　 = /usr/local/mysql5122/bin/mysqld_safe mysqladmin = /usr/local/mysql5122/bin/mysqladmin user　　　 = multi_admin password　 = 123456 # The MySQL server [mysqld1] socket　　 = /tmp/mysql1.sock port　　　 = 3307 pid-file　 = /usr/local/mysql5122/data1/david_yeung.pid1 datadir　　= /usr/local/mysql5122/data1 language　 = /usr/local/mysql5122/share/mysql/english user　　　 = mysql # The MySQL server [mysqld2] port　　　　　　= 3308 socket　　　　　= /tmp/mysql2.sock pid-file　 = /usr/local/mysql5122/data2/david_yeung.pid2 datadir　　= /usr/local/mysql5122/data2 language　 = /usr/local/mysql5122/share/mysql/english user　　　 = mysql 。。。 [isamchk] key_buffer = 8M sort_buffer_size = 8M [myisamchk] key_buffer = 8M sort_buffer_size = 8M [mysqlhotcopy] interactive-timeout [root@ff_girl mysql5122]# 启动两个MYSQL服务 [root@ff_girl mysql5122]# /usr/local/mysql5122/bin/mysqld_multi --config-file=/etc/my5122.cnf start 1-2 [root@ff_girl mysql5122]# netstat -an | grep 3307 tcp　　　　0　　　0 0.0.0.0:3307　　　　　　　　0.0.0.0:*　　　　　　　　　 LISTEN　　　 [root@ff_girl mysql5122]# netstat -an | grep 3308 tcp　　　　0　　　0 0.0.0.0:3308　　　　　　　　0.0.0.0:*　　　　　　　　　 LISTEN　　　 [root@ff_girl mysql5122]# /usr/local/mysql/bin/mysql -uroot -p -S/tmp/mysql1.sock Enter password: Welcome to the MySQL monitor.　Commands end with ; or \g. Your MySQL connection id is 1 Server version: 5.1.22-rc-log MySQL Community Server (GPL) Type 'help;' or '\h' for help. Type '\c' to clear the buffer. mysql> \q Bye [root@ff_girl mysql5122]# /usr/local/mysql/bin/mysql -uroot -p -S/tmp/mysql2.sock Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 1 Server version: 5.1.22-rc-log MySQL Community Server (GPL) Type 'help;' or '\h' for help. Type '\c' to clear the buffer. mysql> \q Bye [root@ff_girl mysql5122]# 2、另外一种。 [root@ff_girl mysql512]# chown -R root . [root@ff_girl mysql512]# chown -R mysql data [root@ff_girl mysql512]# chgrp -R mysql . [root@ff_girl mysql512]# scripts/mysql_install_db --user=mysql --basedir=/usr/local/mysql512/ --datadir=/usr/local/mysql512/data/ [root@ff_girl mysql512]# cp support-files/my-huge.cnf /etc/my512.cnf 并且修改如下部分。 [client] port　　　　　　= 3308 socket　　　　　= /tmp/mysql512.sock # The MySQL server [mysqld] user=mysql basedir=/usr/local/mysql512 datadir=/usr/local/mysql512/data port　　　　　　= 3308 socket　　　　　= /tmp/mysql512.sock [root@ff_girl mysql512]# /usr/local/mysql512/bin/mysqld_safe --defaults-file=/etc/my512.cnf & [root@ff_girl mysql512]# /usr/local/mysql/bin/mysql -uroot -p -S/tmp/mysql512.sock Enter password: Welcome to the MySQL monitor.　Commands end with ; or \g. Your MySQL connection id is 1 Server version: 5.1.22-rc-log MySQL Community Server (GPL) Type 'help;' or '\h' for help. Type '\c' to clear the buffer. mysql> show databases; +--------------------+ | Database　　　　　 | +--------------------+ | information_schema | | mysql　　　　　　　| | test　　　　　　　 | +--------------------+ 3 rows in set (0.00 sec) mysql> \q Bye 确定3308端口是否在运行。 [root@ff_girl mysql512]# netstat -an |grep 3308 tcp　　　　0　　　0 0.0.0.0:3308　　　　　　　　0.0.0.0:*　　　　　　　　　 LISTEN　 把脚本写到启动文件里： /usr/local/mysql512/bin/mysqld_safe --defaults-file=/etc/my512.cnf

	不错，看看。

	顶你一下，好贴要顶！

	楼主福如东海，万寿无疆！

	支持~~

	感謝樓主

	不是吧

	帮你顶，人还是厚道点好

	长时间没来看了 ～～